The Prophet Salaam's Death of Abu Talib

Abu Talib fell sick and the pangs of death began upon him. The Prophet Salaam said to him, One Calima that I will be able to argue with you in front of Allah Subhanahu wa ta'ala. These three calamities all took place in the span of two months. And because of these three calamities this whole year is called the year of sorrow.